7569940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{389}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 18345600

約数和(自身を除く): 10775660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 389, 556, 695, 778, 973, 1390, 1556, 1945, 1946, 2723, 2780, 3890, 3892, 4865, 5446, 7780, 9730, 10892, 13615, 19460, 27230, 54071, 54460, 108142, 216284, 270355, 378497, 540710, 756994, 1081420, 1513988, 1892485, 3784970, 7569940]

約数ペア:

[(1, 7569940), (2, 3784970), (4, 1892485), (5, 1513988), (7, 1081420), (10, 756994), (14, 540710), (20, 378497), (28, 270355), (35, 216284), (70, 108142), (139, 54460), (140, 54071), (278, 27230), (389, 19460), (556, 13615), (695, 10892), (778, 9730), (973, 7780), (1390, 5446), (1556, 4865), (1945, 3892), (1946, 3890), (2723, 2780)]